| Summary: | 碩士 === 國立臺北科技大學 === 資訊工程系研究所 === 101 === Video streaming has become an enabling technology for multimedia applications, owing to the popularity of mobile devices and wide adoption of the Internet. MPEG Dynamic Adaptive Streaming over HTTP (DASH) allows a standard-based client to stream multimedia content from any standard-based server. The adaptation mechanism in DASH can switch quality levels according to network conditions.
In this paper, we implement a complete MPEG-DASH system, which includes the server, channel, and client, exclusively by open-source software. We also propose a new decision mechanism for quality control with MPEG-DASH. The adaptation algorithm selects the most appropriate video segment according to network bandwidth and buffer usage. The emulation results substantiate the superiority of the proposed method over the quality-control method given in VLC, in both visual quality and network efficiency.
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